Książka Strong and Weak Topology Probed by Surface Science Christian Pauly

Strong and Weak Topology Probed by Surface Science

Topological Insulator Properties of Phase Change Alloys and Heavy Metal Graphene

Język: Angielski
Oprawa: Miękka
Wydawca: Springer
Dostępność: Dostępna u dostawcy
Wysyłamy za 8-11 dni
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Christian Pauly demonstrates the strong topological properties of the technologically relevant phase...

Informacje o książce

Język
Angielski
Oprawa
Książka - Miękka
Data wydania
2016
strony
166
EAN
9783658118105
ISBN
3658118105
Enbook ID
09925410
Wydawca
Waga
2354
Wymiary
148 x 210 x 13

Pełny opis

Christian Pauly demonstrates the strong topological properties of the technologically relevant phase change materials Sb 2 Te 3 and Ge 2 Sb 2 Te 5 by using two powerful techniques for mapping the surface electronic structure: scanning tunneling spectroscopy (STS) and angle-resolved photoemission spectroscopy (ARPES). In the case of a phase change material, this opens up the possibility of switching between an insulating amorphous and a conducting topological phase on nanosecond-time scales. Moreover, the author presents first experimental results of a weak topological insulator, namely on the bismuth-based graphene-like sheet system Bi 14 Rh 3 I 9 , revealing a topologically protected one-dimensional edge channel as its fingerprint. The edge state is as narrow as 0.8 nm, making it extremely attractive to device physics. Those strong and weak topological insulators are a new phase of quantum matter giving rise to robust boundary states which are protected from backscattering and localization.§

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